Sewing-machine.



B. F; RHODES.

SEWING MACHINE.

APPLICATION HLED FEB. 25. 1915.

Patented July 11, 1916.

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B. F. RHODES.

SEWING MACHINE. APPLICATION FILED. FEB. 25. I915.

I1 SHEETS-SHEET 3.

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SEWING MACHINE.

APPLICATION HLD FEB. 25.

Patented July 11, 1916 l SHEETS-SHEEY 4.

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B. F. RHODES.

' SlWING MACHINL H SMHTS-JHI 5.

BJPOR F3605 B. F. RHODES.

SEWING MACHINE.

APPLICAYIQN FILED FEB. 25, 915- 1,191,094. Patented July 11, 1916.

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SEWI

APPLICATION FILED FEB/25.19MB.

NG MACHINE Patented July 11, 1916.

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a4 a? 14-1 a0 25 3141mm FRIzaJes,

Byron B. F. RHODES. SEWING MACHINE.

APPLICATION FILED FEB. 25. I915.

Patented July 11, 1916.

I1 SHEETS-SHEET 8 gn anucoz Byron [Rhodes wi tneooco B. F. RHODES.

SEWING MACHINE.

APPLICATION FILED FEB. 25. I915. 1,191,094. Pateflted July 11; 1916.

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nwntd a B. F. RHODES.

SEWING MACHINE. APPLICATION FILED FEB. 25. 1915- 1,191,09 4. Patented 11,1916.

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B. F. RHODES.

SEWING MACHINE.

APPLICATION FILED FEB. 25. 1915. 1,1 91 ,094. Patented July 11, 1916.

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Byron odes,

UNITED s'ra rssrammj @FFIGE.

.13 RON: Bosnsggnonss, O F PHILADELPHIA;I'PE'NNSYLVANIA;:ASSIGNOR.OE=EIETY- hatchet-1 mg. lijli tedistates; residing at tl' c any of Philadelphia i si 'lvania; have invented se all Improvements in ."to improvements in jcct of the 1nvent1on .reinforcing leather Lie stitches constitut- "the leather, and operprovide a sewing the I o providea sewing i1 mp oved arrangement of nfsi-i ission therefrom to 'parts of the machine L s t o provide improved ntro lling the operation of the aii s iig'ftlie same to be locked i'noi'ement during a portion Ol i Ilil(l 1' leased from time to the :pr'sser foot tobe elc vated to allowthennoifcment of the leather Specification Of LEttCIS Patent.

g machine which is TOLFF'EVRDINAND KELLER. OF PHILADELPHIAFPIENNSYL siawlNo-macnfm a,

Patented July. 1 1,-1916'.

. lfipplicatio n iiled riairuar es, 1915. Serial No. 10,511.

claims.

pointed out in the In the accompanyingdrawings: Figiire lis a view in-side'elevationi .illilstratingjmv improved sewinginaehine. Fig. 2 is aivi'ew in elevation of the opposite side oft-he machine. Fig. 3 is a view in vertical transveise section on an enlarged scale 011 theline 3-3 of Fig. 1. at is a face view of the cam 11. Figs. 5. '5". and 5". are fragmentary sectional plan.v views ilh-istra ting thr positions of the needle looping mechanism. Fig.0 is a view in transverse section on an enlarged scale on the staggered line (3 G of Fig. i. Fig. 7 is a view in end-elevation of the head of the machine with the parts adjac'ent thereto. Fig. S. .is a fragmentary perspective view illustratingthe positionof the wiper as it moves the lower tlircad into' engagement with the barb of the lower hook.

Fig. 9 -is-a fragmentary perspective view showing the first position of the looped threads. Fig. -10 is 'a view in end elevation showing the base of the machineland the partscarried thereby. Fig; It is a frag.-

me'ntary pcrspeetiveview 'showingthe operative parts for forming the stitch. Fig. 12

is a fragmentary view in section on an enlargcd scale showing the construction of the wedge block 57 and its-cooperating parts. Fig. 13 is a fragmentary view in side elevation on an enlarged scale illustrating the stitch forming mechanism carried b the base of the machine. -Fig. 14- is a plan view of Fig. 13. Fig. 15 is a trag|nei1ta1' view in horizontal section on an e'nlargedscale on the line 15-15 of Fig. 1, certain parts of the construction being broken away and others omitted for purposes of clearness. Fig. 16 is an exaggerated view in section illustrating the stitch which is formed by my improved machine. Fig. 17 is an exaggerated view in horizontal section showing-my improved thread fitting mechanism, and Fig. 18 is a view in section on the linelS-1S of Fig. 17.

i represents the base of my i1n 1roved inaeh iie which is made with an integral over hanging bracket arm 2. having a head 3 at its treecud which is located above a work support at having a throat plate Sthereon.

The base 1, arm'Qfand head 3 constitute a single hollow casting which supports all ,der the barb 2iof the needle 20 of theparts o-f the machine.

The drive'shaft'fi is supported in suitable .bea'rings'i'and S which-are integral with the base, and-on this shaft 6', a fly-wheel 9. and a drive pulley IO are sec ureda n the. sha-ft6, four cams,1'1,-'1-2, l3, and Ll, are secured, and these cams control the operation of the cooperating parts ot 'the machine as throat plate and caused toelastically .en-

'and operates to .quic cly lower the-Presser foot when permitted, I-rely 'upon'a positive .lockmg' meansjto atwork..- 1.91represents' a reciprocating bar whichhold the presser'foot while carries at' its lower end an awl 18. This awl.18 is movable through the presser ,foot Y to; cut an .opening.intlie leather for the entrance of the needle '20 supported in the base 1, n movable upwardly through .the throat plate 5,

A thread .carry jg hook 21 operates above the throat plate 5 in conjunction f with a finger 22' toposition the upper cord 23 unclearly in Figs. 5 5, and-5W 4 while in this position, the lower cord 26 is fpositioned throu h the loop of the upper cord as shown in ig. 9' by means of'a lower hook 27 anda wiper28 as shown-in F 1g. 8.

ing finger 29, and "a takeup lever 30 draws the upper cord 23 upwardlyto complete the stitch.

The stitch-forming and cotiperating parts above described are'all controlledbythe earns 11, 1'2, 13, and,-14-as will now be ex- -plained.

The presserbar 15 is elevated at regular intervals by means of a rocker arm 31 se cured to a rocker shaft 32, the latter mounted in bearings 33 on the arm 2. The rocker arm 31 engages a depending lug 34: on a block 35, the latter secured to the upper portion of the presser bar and having a guide pin36 movable in a slot 37 in head 3.

An arm 38 on rocker shaft 32 is connected by a link 39 with a crank pin 40 on one face of cam 11, so that the rotary movement of the cam 11 imparts a rocking movement to the shaft 32. This shaft 3' is also provided with a rocker arm 41 which has a bifurcated free end straddling a stud42 on the awl bar 19 so that the said awl bar is caused as shown" r p Presser-bar 15, and is located between the gThe'needle 2-0 dr'aws the upper cord. 23' downwardly-t through the leather 25, nd

to reciprocate through the medium. ofdsaid 6:

presser foot in its; lowered position. This.

clutclrconstitutes a s leeve l3' which is cated on the presser bar 15, and is provided ,7

Y with an'arm 41 extending outwardly therefrom; This arm 44, adjacent its free-end,

. i ng ged by a wedge which-moves longitudina'lly between the arm 44, and a laterally projecting notched plate 16 on a bracket 7 secured to the head '3.' The -\ved'gef45 is pivotally eonnected'to a lug -18 on a lever 49-. This leverl9'is pivotally supported between its ends on a screwIfiO secured to head 3, and'at its upper end is connected-b a 8 rod 51 with a lever The lever 5Z-is.piv-

otally connected between its ends by meansv of'a stud 53 with 'the base 1 and at its free "end engages "in the groove 51 of cam so that the rotaijv movement of the cam causes-1 jthe 'presserfoot to be released at regular intervalsand permittedto rise.

" As it 's necessary and. desirable from time to time to manually elevate the presserfoot,'I hav-e provided a lever 55 forthis purpose. This .lever -5F .is pivotally supported 'nearone' end on a screw 50, and at a I e lts shorter end is adapted to. engage under the block" and elevate the presser bar when ermit-ted. 1 a

A; ifurcated. block .57 's'traddles' the sleeve 43 and the coiled'spring' 17 below.- An angle. arm 57' is'secnred-to the bifur Catedblo'clc and is connected toja'lever'aiS. The movement of the 'lever- 58 causes the block 57 to move longitudinally and compel thesleeve -13 toassume a horizontal position with its inner walls parallel to the presser bar. 15 so as to release 'thepresser bar and allow the same to be elevated. This movement of the .sleeve 43 is very slight, but is sulficient to permit the sleeve a locking and releasing position,

' \Vhen the sleeve is in'its locking position,

the block is as shown in Fig; 12, and there is a long leverage between the block and the lever 5'8 wh1ch permits a certain movement-of the block, enough to allow. the sleeve 43 to position at an angle for gripping. \Vhen the lever 58 isoperated, block 57 s maintained in a horizontal position and moved longitudinally 'to straighten the sleeve and release the presserpbar,

Through the medium of the mechanism above describedflvhen' the lever -1s operated, it will first cause the block 57 to rethe presser bar.

By reference particularly to Fig. 1, i will be noted that the lever 55' is spaced I before the I 1:. 211115033- referred M i ed to'fii eit'i'czil-ly positionedrocker shaft 52 \yfhich -ls inounted in the head3, and providedi-aYith-fii shortmam: 3111163 .leve pixotnlly "supported between its ll \f-'in any desired: way, but

free oFthfe -le-"ercooperating with-the tendsthrough a bearing 96-011 thebag -j fnlinelnent with bearing 93. r

threag id i nglhook' 21 to position -.t-l1e-.'cord'- in tl the neec'lle as i shown clearly m FLg 0".

functions abo yfe described; controls the 'operat-iqn-i of; n1' improved pull-oil" meeha l'lism 'l shown ingil etailin FigsJl-Y andlSg-f Y EiQI Q i 3 115 -72; respecti\"ely";endbe 1 tweennthexams an ntegral roekew-zirm 1.51 1s pro\fixledjionflthe v sleeve '1' 1:5. The cams Z2" and Z3 engage blfuneated blocks" 75 on rods TG zimd-iIaese rods- 76 are adjustably eonpermit an 'elasticconnection between the -rocker' a'rm 79 and the rod.

listing nuts 845 -a :re'loea ted on t l 1e 79 to z'ldjust theitension-of the sprlng, and. *thereletir-e position of. the parts. The p.lun-

55. gen-81 has amopening S5 for the passage of the" cord 23, when this "plunger moved, Muse'st'heicord to bulge bet ufeen thef-Fp, lleys fif) and '70, and give.- sulnclent 'l ek l for the stitch-5} 1' e As the cams-'72 and73 are oppositely poxsitione'd? it n 'il'lrbe notedthat ln hentone earn cadse'sits "$110677 to engage thepulley 69, theoth'eream fillfpermit the release :Of its 11*:00178 from pulley 70 and vlce verse, "so

inp sate for: v p lis': permitted to tkll'll', 11111311 1}! lnnt of'tliek-nuts" luon the 170d proper amount of. slack 'cord -ma \ided for each operation. v

in the base 1 31nd A p jextends. longitudinally thereof. On th.is "conneetedby rod.61'lvith-alererGgil The T me ee-511515 32, addiibil e5 its the A shiiftSG 'is supported determined intervals; IThis'fralne S'Z'sup: I @ports" anclfp'rox'ldes a. mounting =fo'r :the ver I tlcally reclpro'catmg" needle ba 11-88',."oa'rrying 'vo'lprocaltes through the throatwlatei The needle bar-BS .isprovided \'it-h a block 89 sliding in frame 8? {and connected by a -hnk 90 \'1th "an arm 911011111 rooker shaft '92;

hi ;'h latter i ss-uppo'rted ina -suitable. bearl "ing 93, and has"'a'- thrust Jbearingf91 inPthe 100, so that-*the shaft =,is- ;-pernlitted; a slight .latlng movement to the' 'needle .b a'r supo ingfranle 87. y 1 V V The rocker shaft 92 which rediptbates; needle bar S8, is protideidwvith in arm;

adjustablj .ysecured'--in slot-Q 1111. in the means of'u bolt 113. Thebell-crnnk leyer tion'the'frq me 87. The opposlteiendofle'- flier-9711s prodded nii-thfa' slotJOI in-in'hkh 1 a block 102 is adjustably secured bfly ,.-lnelins.;

' of :1 wing nut- 103. The -b lock l02 595 I fin the groovelOl in 'mr-L lsliapd lever: andfisuprosiided with two-oppositely "posi iS leverl0 5 "i5" SQCHl Cl', fl x z f tngl:i 1 shaft 95,-311-(1 its longer end-isprovidedjvith a'pinl'Ofi-loe-ated, i'nza cam grooiie-l07in K23 face of cam "11'; soihrt the "rotary movement. I of the Cam- 11 iin'parts' an lnterm-ittent o'se 10'5" 1 loSu'hicl'r is oonnected-by'a stud Within fl link 110. The-(link '1'10atits' other end, "1' Y mounted to turnto'ni a shzift. the latter supported in 11-be'ziring' -115- n thehases The longer-end of thebell-crank-leyer'112 1scon nect'ed'by q" link 11? to the-:crzi'nk pin 40.

:ibore referred. to "so that-the turnlng move ment of cglm 1 1' imparts e -rocking movement to sh'zlft 92. \Yhlgih movement-"maybe? adjusted hy'the location e f the bolt 113 in-f'l slot 111. r

The stud" 109 which pilx 'otelly connects .iu-m 108 with link 110, also projects .i 1 9 a longitudinal grooi'e 118 inan oscillatlng arm 119Qwhich latter is secured to a shaft. 120 u'hich extends longitudinally of th base 7 end'of shaft 120, and connected by alink with a crank arm 123 ion-e .vertlcal Acranli arm 121 is seeured: to the otally connected at itsupper. end'to the basea's shown at'130, land between its ends is provided withfa. stud 1311. which operates 111' a. cam groove 132 in-cam 12. V

The wiper 28 above referred to is provided at one end with a bearing sleeve 133 which turns on a post 134011 base. 1, and

said sleeve133 is provided with'an arm' 135 which 'is connectedto a rod ,136 extending longitudinally of the-base, and at its" rear end connected-to an arm 137. The arm 137 is pivotally 'supp0rted at its lower end as. shown at 13.8, and adjacent its upper end is providedwith a-stud 139 which is located in the groove 140 in cam 14.

' The lower c0rd 26 i's movablethrough a guide 141 secured tofra'me 87 and to pro-.

vide-a suff cient slack in this lower cord to form the stitch, I providean arm-142 having a guide 143 thereon for the cord. This 'arm 142 is secured to, a rocker shaft 144 which, at its rear end, is. provided with a slotted arm 145 in which a bolt 146 is ad-' justably positioned, and pivotally. and slidably connects a link 147 with the said arm 145.- This link 147 is pivotally connected tothegL-shaped lever 105, and receives its otion therefrom. 1 f I In forming my improved; stitch in the leather or other material, I saturate the cords with wax or other similar material. The upper cord 23 is guided through a tank vice 149 and the pull-offv controlling mechanism shown in Figs. 17 and 18. It will be noted that this pull-ofi' controlling mechanism is inclosed in a casing 150 which may or may not beu'sed as desired; j. a

' The cord23 prior/co its passage through the opening 151 in hook 21 is engaged, by a tension 152, although 'itis to be understood that the invention is not limited ,to the par ticular tension devices for the cordsz The lower cord 26 is drawn througha tank. 153 secured to base 1', so as to receive its necessar'y quota of wax, and in order to maintain thecontent s of the tanks 148 and 153 in ported in a bracket 156 at the free end of a.

take-up lever 157. This 'take-up' lever [is pivotally supported between its ends in the farm'2'as shown-at 158,; and at its rear end 1.isc0 1 mected by depending link 159 with 148'in its passage between-the tension dethe free end of a pivoted arm 160. -The arm 160 is pivotally supportedat its' outer end by means of an upright 161, and between its ends is provided with a. pin 162 which 'rides in a cam groove in the face of cam.

downwardlythrough 1 the 'flea'theri 25 to" punch the hole in the leather, and it-will be noted that thiszawl'is not round but flat, so that the hole isin the form of a slit which readily closes to tightly bind the stitch, and

the-w axedcord insures a positive sealto e xelude. moisture.

when the needle reaches itshighest position asshown in Fig. '11, the thread guiding hook As. the. -awl moves up- :wardly, the needle .20 follows the same through the opening in the leather, and

the upper cord 23'under the barb 24 of. the

needle 20, as shown clearly in Fig. -5. In other words, the .needle when it rises islocated to one side of, the thread. The finger '22, by reason of the pivoted. lever 49, will swing in one directiontand the hook21 will move in the opposite'direction so as to carry.

the thread in a horizontal position under the barb 24 as shown in Fig. 5*. The movement of the hook 21 is appreciably greater thah that of the finger although the latter moves slightly in a different direction to the direction of movement of the hook, andassist's the hook in holding the thread more or less taut, and in a horizontal position under the barbof the needle. Fig. 5 shows the position of the hook 21 asit positionsthe cord 23 over the finger22 'Fig. 5 shows an intermediate position .n' which the cord is practically straight, and the finger and book are moving in the' direction ofthe arrows. Fig. 5 shows the completed stroke.

or' movements of both the hook and the finger with the thread securely under the barb of the needle. .VVhen the finger returns to its former positiongit. releases the cord which is rawn down my the needle,

iio

and the operation as above described is-repeat ed at the proper time. in these Figs.

5, 5 and 5", the dot ahd dashI-ine indicates the line of feed of. the-leather, and it isunderstood that the needle has a slight oscil lation in the,direction of the line of feed to move the leather as above described. The needle 20 then moves 'ownwardiy through the'opening inthe leather, drawing with it in loop formation, the upper cbrd 23. The lower hook 27 then wmoves through the looped upper cord, and' the wiper 28 moves inwardly positioning the lower cord in the hook 27 as shown clearly in Fig. 8. Hook '27.

then moves through the looped upper cord I drawing avith litthe looped lower co rd, and

"take-up. lever 157-then moves 'upwardly, drawing the two looped threads firstv to the;

ters Paten ment 6%- h'ook' 2 engages the upper cord Bi-andrelea-ses the.

V tween the stitehes ean-he'eontjrolled to suit ventio'n, and hence I doinot limit inyse the 'PLGCLSBJ details set forth, but 3 COIl-S'Kltil:

' serihed when ireae'liing a pr e-detelithehoo QY -leaXQ the (1. .-'During this 'mme'nient', oryjus tzithfiild, 0fthe. frnove .t-lie releasing finger 29 same from the bath 24 iofrneedle-jtii; The

position shown in Fig.9, and'upon the completionofthe'upward movement of the take-up lever, the threads Kill be" heldto gether as shown clearly in Fig, "As above described, the fraine18T is caused. to osci-llate. atregular intervals, and this oscillation takes place when the needle. iZO-is rojeete-d upwardly throughjhthe leathe'r', andsuch movement takes place when the presser foot. 16 iselevated, so that the movement of the.

frame of the needle performsthe tee-fold funetion of feeding theleather forwardly and also of moving" the needle so" that its barb will engage under the upper-thread 2. .1 tter is held by the hook '20 and the By adjusting this movement of 8, which adjustment-is faecoin the frame plished by ,means oft-he-bloek 102 and not 103 shown in detail in- Fig. 3, the space'le' Conditions; v I

Xanqns shght changes might .lgefmad e in the general form and arrangement of parts 'leseri'hecl without departing from ,myanhold athread in substantially horiiontalpQ- sition to be engaged by the barb .of the needle, apress er footj and ineans-j aetuated by said pivotedlever for clanipingithe presser. foot during the period of reeiproeatlO11 .Of said needle, 'substantiallyf-as Cle- Ina. sewin machine a reeirocatin D 3 b movable thread gaiding hook on said lever,

- a reciproea-tingthread carrying finger '00- operating with said hook to "position the thread under the bai hofthe needle, a resser bar and foot,'a fixed member asthd an said presserbar', and a wed 'e'o saidlever arranged between said or ember (151d said stud, as and for the piir'pose specifieei.

3. A reciprocatinglpa rbed needle, :1 thread supporting hook rnovable. transverselv nf the niinjed position,

needle to feed the. goods, a tlu'ead supporting hook movabh; transversely 01": the direction of movement of the goods, :1 threadsupport ng'frngerh'aving anleecentric cur-v vihnear anotxon about v the" needle to engage Y.

directioh of moveineiit the g00ds,a thread 7 rig barbed needle, means 1 l for imparting a lateral {novel-merit tothe.

the thread on saidrhook and posit-ion the sameunder the harb'of the needle, substantially asdescribech i 5.. A sewing maehine, comprising. a recip-- rocating needle having a. barb thereomza '-rockerishaft parallel with-said needle aria eccentrieally arranged with re latl n tl said shaft having a curved thread-eguxdrhg; Y hook atitslower end .-and a hnger movableitransi'ersely of feed of the goods. and

eoifiyerating with the hook to. -.snpport a,

thread in horizontal positionland receive the barb of-the needle, substantiall -scribed,

'16. Asewinggmaehinecomprising-agrecip z rocating needle having 'a-- -bf1'rb thereon, a.

roel-: er shaft-haviigfg a thread guiding hook at its lower end, :a finger; movahle trans-- 1 =versely.'of the feed ofthe-goods and cooperg ating 'with the hook to supportathread'in horizontalpositioii -to reeelve-thebarb off I e the needle, and means for moving the 15160616,

laterally, Substantially as described.

A sewingmach ne, eo'inprrsing -a' recur vroeating needle having-a barb thereongg-a vertically positiohed' rocker shaft, :1.- pir-oted lever, a c'l'irved threadguid'ing hoo k oh the lower end of theroeker shaft, a finger on the.

7 lower end of the'lever movable in snbstantially the same horizontal plane as the hook, and means ior-moving-both the lever and the shaft to move thefinger and thehook and-position a thread underthebarb of the needle, substantially as described.

8. .A sewing machine, eomprising-a reciprocatingneedle having aharh thereon, a vertically positioned roc-kershaft, api oted lever, a curved threadguidiu g hook on the lower'endof the. -roeker.sha-fi, a fingeron the lower end of the lever movable in substanmeans for movingtherocker shaft' an i lever so as to"coz n1' el'the hook a"- 111ider the ban-h offthe needle, and

' "1 the loop of i mop the fir .7 I d t e d when the latter is drawn down- A .79. A a 'ing machine; Comprising a reciprocating needle havuig a barb thereon, a

v tiallythe same horizontal .pla 'ie as the hi iulg-j barbed nee'dle,.a fpirotedlever, a transversely iihsi'antially as defierent directions, iliul'i posit-ion I j finger movable in a strai'gl it :pat h and a. In testimony whereof. I hai e sigiied hook movable in a-curvedp'ath and eo6per-' name to this specification iii the presence of ati-xig;with the ,filiger to pbsition'. a. thread twq subscribing witnesses.

under the barb, ofthenee d1e,'.and .iiieans for BYRON FOSTER'R'HODES, simultanebusly moving said'finger and Witnesses;

in difl'ere't directions, [substantially as de- Mum Jscxsom.

scribed. i CHAS. EIPOTTSQ 

